Stripping mechanism for hosiery driers



ug. 2, 1932. H. F. WANAMAKER STRIPPING MECHANISM FOR HOSIERY DRIERS Filed Feb. 6, 1931 5 Sheets-Sheet 1 Mide/H 5 Sheets-Sheet 2 H. F. WANAMAKER STRIPPING MECHANISM FOR, HosEKYi DEIERS Aug. 2, 19312.

Aug Z9 3332- H. F. wANAMAKl-:R v1,870,187

STRIPPING MECHANISM FOR HOSIERY DRIERS Y 12: @L-LQ All@ 2, w32- H. F. WANAMAKER 1,87%187 STRIPPING MECHANISM FOR HSIERY DRIERS Filed Feb; 6, 1951 5 sheets-Sheet 4 M www Aug.. 2, 1932. H. F. wANAMAKl-:R 870v187 STRIPPING MECHANISM FOR HOSIERY DRIERS Filed Feb. 6, 1931 5 Sheets-Sheet 5- Patented Aug. 2, 1932 UNTTED STATES PATENT OFFICE EARRY F. VANAMAKER, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 PROCTOR 1 SCHWARTZ, INCORPORATED, OF PLADTaLPl-IA, PENNSYLVANIA, A CORPORA- TION GIE' PENNSYLVANIA STRIPPING MECHANISM FOR HOSIERY DRIERS Application sied February 6, 1931.

This invention relates to means for loosening the top portion ot a stocking relative to the i'orm on which the stocking has been taut-ly drawn as a resuit of its having been dried on the form, as, in an automatic hosiery drier such as that shown and described in U. S. Letters Patent No. 1,126,619, dated January 26, 191:5, the loosening or stripping oi' .the top of the stocking being effected prior to the complete removal of the stocking from the form b y an automatically operated means such as that shown and described in the patent noted.

` The 'present invention constitutes an improvement over the top stripping mechanism shown and described in U. S. Letters Patent io. 1,711,384, dated April 30, 1929.

In the device shown and described in the last-mentioned patent the stripping or loosenin g of the top of a stocking is effected after the stocking torm has been moved from the normal vertical position, in Which it was held luring its passage through the drier, to the horizontal position assumed by the iiorm for the purpose of automatic removal of the stocking from the form, b y the above-mentioned mechanism shown in the first-mentioned patent.

In the last-mentioned patent the loosening or stripping of the top is edected by contact of the loosening means with but one tace of the term and the one side of the stocking adjacent thereto.

he primary object of the present invention is to provide loosening or stripping mechanism which vshall make contact With both sides of the form and the oppositely disposed vsides of the stocking adjacent the opposite sides of the form respectively, in order to eliminate undue st 'ain on the stockin g fabric which, in the finer grades of stocking; has a tendency to stretch the one side ofthe stocking' out ot shape with respect to the opposite side ot the stocking, such as oc- Y casionally happens When contact of the stripoing mechanism is made with but one side ot the stocking and the underlying form.

nother object ot the invention is to construct the stripping mechanism in such a manner that the pressure of the stripping Serial N o. 513,977.

mechanism against the form and the stocking carried thereby may be minuteiy regulated, so as to reduce the friction between the stocking and the form during the loosening operation when a relative movement between the form and the stocking is effected.

Another object of theinvention is to loosen the top ot the stocking with respect to the form while the form is still in its normal vertical position, in order to make contact with both sides of the form simultaneously and tosimplify the construction of the stripping mechanism, the ,construction and operation of Which Will be fully disclosed hereinafter, reference being had to the accompanying drawings, of which:

Fig. 1 is a front elevation of an automatic hosiery :drier with the improved stripping mechanism lapplied thereto;

Fig. 2 isan end elevation of the drier shown in Fig. l;

Fig. 3 is a plan View ofthe drier shown in Figs. l and 2;

Fig. 4 is a front elevation of the stripping mechanism shown in F 1, detached and drawn to an enlarged scale, and showing the stripping mechanism in an inoperative position.;

Fig. 5 .is a view similar to Fig, 4;, but showing the stripping mechanism in its operative position.; and

Fig. n6 is a side elevation of the stripping mechanism and the means for actuating the same 'in -timed relation to the form conveying means of the drier.

As shown in Figs, l, 2 and 3, the drier comprises a track or frame 1 adapted to support and guide a. plurality of stocking forms 2, the forms 2 being supported on yand moved around the track or frame 1 by mechanism, such as that shown and described in the first-mentioned Letters Patent No. 1,126,619, which forms no part ofthe present invention.

The drier also comprises a drying chamber .3 which'overhangs one side of the track 1 to enclose the stocking forms 2 as they pass along that particular part of the track, the forms entering the drying chamber 3 through a. slot 4 formed at one constitutes the drying chamber 3 and emergside of the housing that p tudinally of the sleeve 14, is

11 secured to opposite sides of the portion of they track 1 along which the forms 2 pass as they emerge from the drying chamber 3. Rigidly secured in each of the brackets 11 is a vertically extending guide post 12. Slidably mounted on the upper portion of leach of the posts 12 is a gripper carriage 13, comprising a sleeve portion 14 which is adapted Y to slide-vertically on the post 12. Pivotally mounted at 15 to the upper portion of each carriage 13 is an arm 16, to the outer end of which is pivotally mounted, at 17, a gripper or shoe 18, having a serrated surface 19.

The serrated surfaces 19, 19 of the shoes 18, 18 disposed respectively at opposite sides of the centrally located form 2 are adapted to be moved from the inoperative position shown in Fig. 4 to the operative positions shown in Fig. 5, in engagement with the oppositely disposed fiat faces 2a, 2a of the form 2, in

direct oppositionv to each other, in order that the stocking on the form 2 will be engaged at directly opposite points on its respective sides.

Movement of the gripping shoes 18, 18 from their inoperative positions, shown in Fig. 4, `to their operative positions, shown in Fig. 5, is eil'ected by links 20, 20 pivotally connected at one end, to the levers or arms 16, intermediate the ends of the said arms, as indicated at 21, the opposite end of each link 20 being pivotally connected, as at 22, to a lateral extension 23 of a collar 24, which is slidably mounted on the sleeve portion 14 of the gripper carriage 13.

Relative movement oi" the slider 24, longilimited by a f pair of spaced adjustable collars 25 and 26,

Vsupporting one end of the lower collar 25 limiting the movement of the sh0es'18 away from the form 2, while the upper collar 26 limits shoes 18 toward the form 2, and by adjustment of rthe collars 26, 26longitudinally of the' sleeves 14, 14 the degree of pressure eX- erted by the shoes 18, 18 on the opposite sides of the form 2 may be minutely controlled.

Below the lower end of each of the gripper ycarriages 13 is provided, on the uprights 12,

bearing 27 for slidably an operating rod 28, is rigidly connected a.A laterally extending the upper end yor which to the lateral extension 23 of the slider 24,

while the opposite or lower end of each of the operating rods28 is'rigidly connected to a cross bar 29, the rods 28, 28 being Vslidably guided intermediate their ends by bearings 130, 30 carried by or formed as integral parts the movement of the of the brackets 11,11, in the present instance.

Substantially at the center of the connecting cross bar 29 is a bearing 31, to which is pivotally connected, at 32, one end of av link 33, the oppositel end ot whih is pivotally connected, at 34, to one end of a lever 36. The lever 36 is mounted on a shaft 37, rotatably carried in brackets 38 mounted on the framework 1al of the drier. Asecond lever 39 secured to the shaft 37 and lies under one end 4() of an arm 41 of a bell-crank lever 42, which is ivoted at 43 to a bracket 44 carried by the ramework 1a.

The outer end 45 of the second arm 46 of the bell-crank lever 42 extends into the path of a roller 47 which is rotatably mounted on and extends rlaterally from a disc 48 that is carried by a shaft 49, which may be one of the shafts that supports and drives the yconveyer screw 51 that moves the forms alon ythe track or frame 1, or the shaft 49 may e independently mounted in the framework and geared to the conveyer screw shafts, such as those shown inU. S. Letters Patent No. 1,126,619, in order that the operation of the stripping mechanism 10 will be so timed with respect to the conveying screws as to reffect operation of the stripping mechanism at the time each of the forms 2 emerges from the slot 5 of the drying chamber 3.

In operation the elements of the stripping mechanism 10 normally occupy the positions shown in Fig. 4. Asa form 2 emerges from the drying chamber the bell-crank lever 42 is engaged by the roller 47 which in turn rocks the lever 36 about its pivot and raises the operating rods 28, 28. Initial upward movement ot the rods 28 effects a relative sliding movement between the sliders 24 and the sleeves 14 which, through the links 20, rocks the levers 16 about their pivots 15, thereby moving the shoes 18,18 from the normal position shown in Fig. 4 to the broken line positionshown in Fig. 5, at which time the upper sides of the sliders 24 come into contact with the undersi des ot the collars 26; thus, minutely controlling the degreeof pressure exerted by the shoes 18 against the fabric of the stocking lying adjacent the opposite flat sides of the stocking form 2. y

Continued elevation of the operating rods 28 will raise the carriages 13, l13 on the supporting standards 12, 12, consequently moving the arms 16,16 andthe shoes 18, 18carried thereby bodily upward. with respect to the stationary form 2 andl in so doing slides the top portion m1 of the stocking a: upwardly on the formy 2 toward the foot portion thereof, which loosens the top m1 of the stocking w from the broader lower portion of the stocking form 2, as the form 2 1s held in the vertical position. f

Continued rotation of the shaft 49 causes the roller 47 to ride olf the endV 45 of the bellcrank lever 42, permitting the elements of CIK stocking the stripping device 10 tov return to their normal positions shown in Fig. 4.

' the form to emerge, from the drying chamber 3 the toe andheel portions of the stocking will be held rigidly by the gripping mechanism 50 while the stocking form is drawn out of the stocking in the manner disclosed in U. S. Letters Patent- No. 1,126,619.

From the above, it will be seen that the stripping mechanism 10 by loosening the top portion w1 of the'stocking :v relative to the stocking form 2 prior to the gripping of the by the mechanism 50 facilitates the removal of the stocking from the form and relieves the stocking fabric of the strain to which it would be otherwise subjected if no loosening of the top were-effected andthe entire removal of the stocking from the form was effected by the grippingmechanism 5() alone.

From the above, it Will be obvious that the stocking fabric by being .gripped at both sides of the form simultaneously and with equalized pressure is relieved-of any strains, such as would be effected by contact of the stripping mechanism with vone side of the stocking and the underlying form which would cause the opposite side-of the stocking to drag on the stocking form.

I claim:

l. A device for loosening the .top of a stocking from a form on which the stocking 'f is tautly disposed, comprising means for gripping the stocking .at directly opposed points Yon opposite sides of the form intermediate th-e top and foot of the stock-ing and moving the top toward the foot and relative to the form, and means for regulatingthe degree of pressure exerted by the gripping means at the opposite sides of the form respectively to equalize lthe actions of the gripping means at said opposite sides of the '1 form.

f points on opposite sides of the form intermediate the top and foot of the stocking and moving the top toward the foot and relative to the form, and means for independently regulating the degree of pressure exerted by the gripping means at each of the opposite sides of the form to equalize the actions of the grippingmeans at said opposite ysides of the form.

3. A device for loosening the top of a stocking from a form on which the stocking is tautly disposed, comprising a pair of grippers disposed at opposite sides of the form respectively, means for moving said grippers into gripping contact with the portions of the stocking adjacent the said opposite sides of the form, and means for moving said grippers substantially parallel to the plane Vof the form to move the stocking top toward the foot portion thereof and relative to the form.

4. A device for loosening the top of a stocking from `a form on which the stocking is tautly disposed, comprising a pair of grippers disposed at opposite sides of the form respectively, guiding means for each gripper, means for moving the grippers laterally with respect to their guideways into gripping contact with the stocking on the form, and means for moving the grippers longitudinally of their guideways to move the top of the stocking toward the foot thereof and relative to the form.

5. A device for loosening the top of a stocking from a form on which the stocking 1s tautly disposed, comprising a pair of grippers disposedat opposite sides of the form respectively, a guide for each gripper, avcarriage slidably mounted on each gu-ideway, means for pivotally connecting the grippers to the carriages, and means for turning the grippers about their pivots on the carriages for contacting of the grippers with the stocking on the form and for moving the grippers and their carriages longitudinally of the form to move the top of the stocking toward the foot thereof and relative to the form.

6. A device for loosening the top of a stocking from a form on which the stocking is tautly disposed,'comprising a pair Vof grippers disposed at opposite sides of the form respectively, a guide for each gripper, a carriage for each gripper slidably mounted on the guide, an arm pivotally mounted at one endY to the carriage and carrying the gripper at its opposite end, an operating rod slidable longitudinally `of the guide, and a link connecting the operating rod to the gripper carryingV arm for swinging the form respectively, a guide for each gripper, l``= lGG llo'

gripper into contact with the stocking on the 1 eacli gripper slidably mounted an arm pivotally mounted at and carrying the Va carriage for on the guide, one end to the carriage of the guide, a link connecting the operating rod to the gripper carrying arm for swinging the gripper mto contact with the stocking on the form and for moving the gripper longitudinally of the form to move the top of the stocking toward thefoot thereof and relative to the form upon a longitudinal movement of the operating rod, and means for effecting said longitudinal movement of tlie rod.

8. A device for loosening the top of a stocking from a form on which the stocking is tautly disposed, comprising ay pair of Ygrippers ldisposed at opposite sides of the form respectively, a guide for each gripper, a carriage for each gripper slidably mounted on the guide, an arm pivotally mounted at one end to the carriage and carrying the gripper at its opposite end, an operating rod slidable longitudinally of the guide, a link connecting the operating rod to the gripper carrying arm for swinging the gripper into lcontact with the stocking ontlie form and for moving thegripper longitudinally of the form to move the top of the stocking toward the foot thereof and relative to the form -upon ra longtudinal movement of the operating rod, means for effectingI said longitudinal movement of the rod, comprising a lever operatively connected to said rod, and means for rocking said lever.

9. A device for loosening the top of a stocking from a form on which the stocking is tautly disposed, .comprising a pair o' grippers disposed at opposite sides of the form respectively, a guide for each gripper, a carriage for each gripper slidably mounted on the guide, an arm pivotally mounted at one'end to the carriage and carrying the gripper at its opposite vend, an operating rod slidable longitudinally of the guide, a link connecting the operating rod to the gripper carrying armv for swinging the vgripper into contact with the stocking on the form and for moving the gripper longitudinally of the form'to lmove the top of the stocking toward lthe foot thereof and relative to the kform upon a longitudinal movement of the operating rod, means for effecting said longitudinal movement of the rod, comprising a constant ly yrotating element, and means operatively connected to tlie rod and adapted to be intermittently engaged by said rotating element for reciprocating said rod relative to said guide.

10. A device for vloosening the top ofV a stocking from a form on which the stocking is tautly disposed,comprisinga pair of grippers disposed at opposite sides of the form respectively, arguide for each gripper, a carf' '5 riage slidably mounted on `the guide, an arm pivotedto the carriage and supporting said gripper at its free end, a slider element slidably mounted in thel carriage, a link pivoted at one end to the gripper and at its opposite end to said slider, means for inovinv the slider n relative to the carriage to bring tie gripper into contact with the stocking on the form, and ineansi'or moving the carriage lon gitudinally of the form to vcause the gripper to move the top of the stockingitoward tlierfoot thereof and relative to the form. p

.11. A `device'for-loosening the top 'of a stocking from a form on which thev stocking is taut-lyv disposed, comprising a pair of grippers disposed at opposite sides of the form repectively,*afguide-for each gripper, a carriage slidablymounted on the guide, an arm pivoted to the carriage and vsupporting said gripper at its free end, a ably mounted in the carriage, a link pivoted at one end to the gripper and at its opposite end to said slider, means for moving the slider relative to the carriage to bring the gripper into contact with the stocking on the form, means for regulating the amount'of relative movement between the slider and the carriage to control the degree of kpressure exerted by the gripperon the-stocking, and'means for moving the carriage longitudinally of lthe form to cause they gripper to move the top of the stocking toward the foot thereof and relative to the form.

12. A device/for loosening the to of a stocking from a form on Whichvtlie stoc zing is tautly disposed, -comprising a pair of grippersdisposedat opposite sides of the form respectively, a guide for each gripper, a carriage slidably mountedon the guide, an arm pivoted to the carriage and ysupporting said ipper at its free end, a sliderelement slida ly mounted in the carriage, a link pivoted at one end to the gripper and at its opposite end to said slider, an operating element operatively connected'to said slider for moving the slider relative to the carriage to elfect Contact between the gripper and the stocking on the form and for subsequently moving the carriage and tlie gripper longitudinally of the form'to move the top of the stocking toward tlie "foot thereofl and relative to the form. y,

13. A device' for lloosening the top 'of a stocking froma form on which the stocking it ytautly disposed, comprising a vpair of grippers disposed at opposite sides of the form respectively, a guide for each gri per, a carriage slidably mounted on the-gui e, an arm pivoted. to the carriage and supporting said gripper at itsfree end, a slider element slidably mounted in the carriage, a link pivoted atlone end to the gripper and at its oppositelend 'to said slider, an operating elenien operatively connected tosaid slider tor movingv the slider relative' to the carriage to effect Contact between the gripper and the stocking slider element slids on the form and for subsequently moving the carriage and the gripper longitudinally of the form to move the top of the stocking t0- ward the foot thereof and rela-tive to the form, andy a, stop for limiting the relative movement between the slider and the carriage for regulating the degree of pressure exerted by the gripper on the stocking.

HARRY F. WANAMAKER. 

